Recently I encountered an issue where my UDM-Pro had its self-signed certificate expired.In this post we'll see how we can issue a new self-signed certificate. The steps were performed and tested under UDM-Pro with Unifi-OS v3.1.16 Steps Enable SSH on your UDM-Pro Login to your UDM-Pro Select Console Settings on the left Enable SSH Define...

All the actions below are performed in a Windows 10 PC running Linux subsystem (Ubuntu 20.04) Create a file named cert_config.cnf Paste the following code and change the fields [ req ] default_md = sha256 prompt = no req_extensions = req_ext distinguished_name = req_distinguished_name [ req_distinguished_name ] commonName = example.com <- Change countryName = AT...

All the actions below are performed in a Windows 10 PC running Linux subsystem (Ubuntu 20.04) Convert PEM, CRT, CER to PFX Requirements The certificate's private key A PEM file (.pem, .crt, .cer) The following command will generate a .pfx file from your .key and .pem file: openssl pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.pem Replace “privateKey.key” with the name...

I wanted to configure my Edgerouter-X to use Quad9 DNS instead of my ISP's DNS. Below are the steps taken in order to achieve my desired result. Model: Edgerouter-X Firmware: 1.10.11 Desired DNS 1: 9.9.9.9 Desired DNS 2: 149.112.112.112 Always take a backup of your current configuration before applying any changes! According to Ubiquiti: If...